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Engineering Interview Questions
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Question 106 - In a wavefunction, let P(x) = A cos kx + B sin kx. By using the boundary conditions of x = 0 and x = l, where P(0) = P(l) = 0, prove by mathematical calculation that P(x) = B sin (npx / l) where p = 22 / 7 approximately, n is a rounded number. A, B and k are constants.

 1 1557

What is comprehensive definition of compressor surging

 962

if i added hypo before DM plant so i will affect my resins of anion or cation. if affect it so do prevent what kind of step should be taken to remove hypo before DM inlet?

Hindustan Unilever Limited,

1074

Dear guys we adding hypo at climax plant and that water is inlet to DM plant so with hypo water that can affect my resins of cation and anion. if it is affect life of my anion and cation so what kind of steps should be take.

Hindustan Unilever Limited,

1028

what is the reason of capacitor failure in alternator which is working with 10 kva dgset

 989

reason of capacitor failure or low voltage in alternator wtih 10kva dgset

adag,

1168

reason of diode failure in alternator

adag,

1406

aternator every parts and its working

adag,

1181

ENGINEERING DRAWING - EXAMPLE 18.3 : Autocad computer program is used to draw a pipe that is used to transport natural gases for processing. Actual length of the pipe is 10 metres. The pipe has cross sectional area of circle in shape with measured circumference of s = 3 metres. (a) If 10 units are used to represent the actual length of the pipe in computerised engineering drawing, find the diameter of the pipe, d that will be shown in the engineering drawing. (b) If one unit in the program equals to 1 centimetre, find the scale used in the computer program.

 1 1831

ENGINEERING NUMERICAL METHODS - EXAMPLE 19.1 : Solve the simultaneous equation using simple Excel program : r + s - t = 7, 2r - s = 0, 3r + 2t = 15. Explain the use of functions of MINVERSE and MMULT together with the keyboard C (Ctrl) + S (Shift) + E (Enter).

 1 1532

what is the difference between directional & non directional earth fault with example please explain.

 1349

How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

 1479

ENGINEERING NUMERICAL METHODS - EXAMPLE 19.2 : For a mixture of benzene (B), toluene (T) and xylene (X), the equation applies where x for B, T and X will sum up to 1. The equation of x for each component is x = (L / V + 1) (F) / (L / V + K). The data of F for each component are : 0.5 for B, 0.35 for T, 0.15 for X. The data of K for each component are : 1.98 for B, 0.76 for T, 0.24 for X. When x for B + x for T + x for X = 1, find the values of (a) L / V; (b) x for each component of B, T, X respectively. You may use Excel program - Data : What-If-Analysis for Goal Seek to perform the iterative calculations.

 1 1687

ENGINEERING NUMERICAL METHODS - EXAMPLE 19.3 : There are 2 simultaneous equations : (A1) x + (B1) y = D1 and (A2) x + (B2) y = D2. (a) By using Excel program, find the values of x and y when A1 = 80, A2 = 150, B1 = 52, B2 = 100, D1 = 3.5 and D2 = 2.3. (b) Write the expression of Excel in the form of =MMULT(MINVERSE(W:X),Y:Z) in order to get the values of x and y. W, X, Y and Z may be A1, A2, B1, B2, D1 and D2.

 1 1991

voltage and frequency is equal but synchronisation not complete why?

 1 1786

Un-Answered Questions { Engineering }

how can we calculate the size of bearing with the size of plummer block?

2658

what is mean by restructuring power system?

1544

What Is A Closed Loop Control System?

679

What is the material of E185

1185

1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2371




what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1440

How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,

2718

What is a projection line?

708

which type feect in generator and turbine in reverse power protection

1946

Define what is back diode?

618

hI, I AM A BE GRADUATE. WILL U LET ME KNOW WHAT TYPE OF OFFICER POSTS ARE AVAILABLE FOR MY QUALIFICATION IN SBI BANK? WHETHER THERE ARE ANY SCALE OF PAY DIFFERENCE FOR THE REST OF THE OFFICER POST AND THE POST THAT IS UNIQUE FOR ENGINEERS?

1611

How does a coal power station produce electricity?

638

What are the losses that occur in a thyristor during working conditions?

650

How many no of poles located in the right half of s-plane for the characteristic equation...

1915

funtionalities of loadining and linking

1472

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